What is parallax?
A. the apparent shift in position of an object caused by a change in the observer's position
B. the shift in angular position of an object as the object actually moves in space
C. the distance to an object, measured in parsecs
D. the difference between the apparent and absolute magnitude
Answer: A
You might also like to view...
The ________ background radiation in fact far exceeds all the energy radiated by all the stars and galaxies that formed since then
Fill in the blank(s) with correct word
Two identical sound producers will sound twice as loud as just one
a. True b. False Indicate whether the statement is true or false
Molecules in the interstellar medium emit radiation at what wavelengths?
a. radio b. microwave c. visible light d. ultraviolet e. X-ray
Acceleration: The velocity v(t) of a particle as a function of time is given by v(t) = (2.3 m/s) + (4.1 m/s2)t - (6.2 m/s3)t2. What is the average acceleration of the particle between t = 1.0 s and t = 2.0 s?
A. -13 m/s2 B. -15 m/s2 C. 13 m/s2 D. 15 m/s2 E. 0 m/s2